The Keramos Alumina series ceramic grinding media product range provides the best performance, and highest wear resistance solution to the lower density, lower cost ceramic grinding media requirement.

Keramos sources the worlds highest grade alumina powders, and applies protected unique production techniques to provide the most exceptional wear performance for these lower value products. Combining exceptional wear performance and reduced costs provides Keramos customers with the best solution to cost efficiency with respect to lower density ceramic grinding media.


A low cost, high performance alumina media, providing exceptional wear resistnace for the low density requirement, ideally suited for use in METSO SMD Mills.


Increased performance, middle density alumina, providing high wear resistance in METSO SMD Mills, and reduced operating costs in High Intensity Mills.


Exceptional performance high alumina media, ideally suited as a lower cost alternative for High Intensity Mills such as the Glecore IsaMill, or the Outotec HIGMill.


An Ultra-High Performance 92% alumina grinding media, with unique additives. MXAH37 series grinding media is a premium, fine-grained, high density alumina based ceramic media.

The Alumina Series represents three products; low alumina, middle alumina, and high alumina, covering the density range 2.8 – 3.2 – 3.6 SG.

The following three products are included in the Alumina Series:

  • GMAH28 – Low Alumina 2.8 SG
  • GMAH32 – Middle Alumina 3.2
  • SG GMAH36 – High Alumina 3.6 SG

The Alumina Series products are designed to provide the best possible performance for both low intensity milling systems such as Metso SMD technologies, and for a lower cost / high performance option for some high intensity milling systems. In general the products GMAH28, and GMAH32 offer the best high performance solutions to SMD type systems, and GMAH36 for solutions to the lower cost media requirement for high intensity systems such as the IsaMill.

"Keramos has saved us around AUD$2 million per year directly on media costs. The other savings are mill linings, agitator arms, maintenance costs, downtime, freight and storage. Consequently, we've awarded Keramos a long-term contract for the supply of their ceramic grinding media." -
SMD Mill